%csv2jsonl(1) user manual | version 1.3.5 f86e208 % R. S. Doiel % 2026-02-12

NAME

csv2jsonl

SYNOPSIS

csv2jsonl [OPTIIONS]

csv2jsonl reads CSV from stdin and writes a JSON-L to stdout. JSON output is one object per line. See https://jsonlines.org.

-help : display help

-license : display license

-version : display version

-d, -delimiter : set the delimter character

-examples : display example(s)

-fields-per-record : Set the number of fields expected in the CSV read, -1 to turn off

-i, -input : input filename

-nl, -newline : include trailing newline in output

-o, -output : output filename

-quiet : suppress error output

-reuse-record : reuse the backing array

-trim-leading-space : trim leading space in fields for CSV input

-use-header : treat the first row as field names

-use-lazy-quotes : use lazy quotes for for CSV input

-for-dataset COLUMN_NO : if COLUMN_NO is greater than -1 then, generate a dataset load compatible version of the CSV file using COLUMN_NO as key.

Convert data1.csv to data1.jsonl using Unix pipes.

    cat data1.csv | csv2jsonl > data1.jsonl

Convert data1.csv to JSON line (one object line per blob)

    csv2jsonl data1.csv